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DOORWIN GROUP is a major Chinese manufacturer, supplying high performance timber windows, alu-clad timber windows and timber doors for large- and small-scale social housing projects in China. These products are highly sought for energy efficiency, longevity and low maintenance.
Our products are manufactured in 3 wholly owned manufacturing plants across China, large state of the art factories, sufficient to supply the largest projects, whilst remaining competitive.

The tilt-turn window, originating in Europe and popularized by passive-house and net-zero construction, is a window type with the unique characteristic of being both an inward-swing casement style window as well as a top opening hopper style window.  The clever hinge and intuitive handle mechanism is specially designed to allow seamless switching between the modes via the orientation of the handle.  Depending on the handle position, it can operate as a fixed window (handle in the 6 o'clock position), inward casement window (handle in the 9 o'clock position) or hopper window (handle in the 12 o'clock position).  This window style combines the security, air-tightness, egress requirements and ease of cleaning of an inswing casement with the all-weather ventilation convenience of a hopper.       

This product represents the latest evolution of our tilt-turn window featuring a solid oak frame and sash and exterior aluminum cladding. Solid wood is the preferred choice for windows due to its low thermal conductivity, strength to weight ratio, ease of finishing and appearance.  Wood window can last generations, as evidenced by the many historic homes all over the world.  That said, wood windows do require regular maintenance and can be susceptible to pests such as termites.  Our wood treatment process produces a more durable wood that our internal testing has shown can withstand unprotected, direct exposure to the elements for 10-15 years before failure and can last a lifetime if properly maintained.  However, for those that desire the ultimate in window technology, our top of the line wood windows feature exterior aluminum cladding alleviating all concerns with wood and the concomitant design considerations to mitigate them.

Competitive with the best in the industry, Doorwin Tilt-turn windows feature 4 sealing layers; a continuous rubber seal around the sash and three inner seals.  Along with our pressure-equalized cavity drainage design, this product ensures outstanding performance even under the harshest weather.

Our energy efficient integrated glazing units (IGU) feature triple-pane glass, warm-edge spacers, argon gas fill, Low-E coatings and fully tempered glass.  Different IGUs are available to meet the needs of different climates.

Doorwin is positioned to offer the finest value in quality tilt-turn windows.  We seek to make durable, energy efficient and beautiful products accessible to all budgets.  We strive to provide the best customer service experience with a dedicated design and engineering team for custom projects and a talented sales team that responds quickly to inquiries.  We back up our products with a 10 year warranty for your peace of mind.  Contact a Doorwin sales representative to experience what sets us apart from the rest.